Orlando v



@nitro gratta @anni @Hina ORLANDO V. FLORA, OF MADISON, ASSIGNOR TOHIMSELF, GEORGE SHAN- NON, AND D. C. ROBINSON, OF JEFFERSON COUNTY,INDIANA.

Letters PatentNo. 79,565. dated July 7, 1868.

IMPROVEMENT IN UARPENTBRS VISBS.

dbi Krlifmte feierten In in their @rims atent aut making part nf thetime.

4TO ALL WHOM IT MAY CONCERN:

Be it known that I, ORLANDQ V. FLonA, of Madison, in the county ofJefferson, and State of Indiana. have invented new and usefulImprovements in Parallel Vises; and I do hereby declare that thefollowing is a. full,

clear, and exact description thereof, which )vill enable those skilledin the art to malte and use the same, refer-l ence being hadto theaccompanying drawings, forming part of this specification.

This invention relates to that class of vises which are adjusted forclampinglarge or small work by means of ratchcts, while a screw is usedin conjunction with the ratchet, for the purpose of holding the workrmly iu the jaws, a half' turn` of the screw being sufficient for thatpurpose.

Figure 1 is a. perspective View of the rise, with a part sectioned.

Figure 2 is a. side elevation of the working part.

Similar letters of reference indicate corresponding part-s.

A is the table or bench, and B the loose jaw of the vise.

C is a sliding beam, with a few inches of screw-thread cut on its rearend, which turns in the nut E, simply for tightening thejaws against4the article to bc clamped, shown at M.

The saddle-piece G is attached rigidly to the nut E, and slides on thestationary bar D, on the under side of which is the ratchety C.

Through the lower part of the saddle-piece G is passed a bolt, on whichis pivoted the diagonal brace H, said brace being attached at or nearthe lower end of the movable jaw B, and passes backward and upwardthrough a vertical slot in thestationary jaw of the vise. This keeps themovable jaw always in a position parallel, or nearly so, with thestationary inw. i

On the rear end of the brace H is the ratchctLplated, which is permittedto engage and discngage with the ratchet C because of the opening in therear end of the brace H being enlarged vertically. These ratchets engagewhen any article (M, iig. 1) is placed'in the jaws, and the screwtightened, bythe action of the movable jaw B pressing the diagonal braceH upward, and thus locking the nut E and saddle-piece G firmly to thestationary har D.

To unclamp, the screw is first reycrsed till the article, M, isloosened, and then the beam C is free to move or slide in or out, at thepleasure of the operator, taking care to slide the'jaw B up to thearticle to be clamped before turning the screw.

The ratchets are shown engaged'in Eg. 1, and disengaged in g. 2.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

The combination oi' thei saddiepiece G'with the short ratcheton the endof the brace H, having the `vertically-slotted opening in the saidratchet-brace, thusrendering the disengagement of the ratchets c and dautomatic, when the article clamped is released,l substantially-osspeciied.

ORLANDO V. FLORA.

Witnesses:

HENRY CoNNsr'r, A. M. Cozmsfrr.

